Assume that one builds a Casimir cavity in the traditional manner, with closely spaced walls. We know the Casimir Effect becomes more pronounced the closer the walls are spaced. Now, if one were to build six such Casimir cavities, and assemble them into a box, would the same effect be noticed within the interior space within that box as is noticed between the dual-walls of each individual Casimir cavity? Would the walls of each individual Casimir cavity making up this box need to be insulated from each other or prevented from touching in some way (ie: individual Casimir cavities making up the box cannot touch each other), since the Casimir Effect ends when the two walls touch in a traditionally-built Casimir cavity? If such is the case, would an insulating layer of thin plastic between the walls of the Casimir cavities (and between each individual Casimir cavity making up the walls of the box) suffice as a spacer, or would that somehow negate the Casimir effect?